Again, this is inane. Because it is at the pump when YOU want to buy it does not demonstrate that supply and demand is not working.
We have dropped usage in OIL in the past months from last year for the first time since the OPEC crisis, this shows that price IS effecting usage and that the supply is therefore setting the price agreeable with demand. They increase when supply is short until it reaches a sustainable level.
Shortages and lines are created by artificially interrupting the process. Like Nixon's price fixing.
I agree that the price affects usage, to an extent, I dont belive at the current levels, the useage affects the price, except that they use useage to decide how fed up the consumer is, when lack of useage hits them in the pocket book, they will drop the price again.